Improvements in the geoid model of Argentina hav~ been developed by means of incorporating new data, testing an other software package and adding GPS/levelling information. In this way; a new model has been calculated and evaluated and the results are shown in this paper. All these activities are carried out under the umbrella of the Sub-Commission for the Geoid in South America (SCGSA).Facultad de Ciencias Astronómicas y Geofísicas